Kurzgesagt – In a Nutshell
Videos explaining things with optimistic nihilism. A small team who want to make science look beautiful. Because it is beautiful.
Seasons
📺
E1
Trees Are Even More Crazy Than We Thought
Aired Jan 7, 2026📺
E1
This Is What Aliens Might Actually Look Like
Aired Feb 4, 2025
6 min
📺
E2
This Is NOT An Anti Meat Video
Aired Feb 25, 2025📺
E3
How Your Brain Fakes Your Reality
Aired Mar 18, 2025📺
E4
SOUTH KOREA IS OVER
Aired Apr 2, 2025📺
E5
Your Time Machine Broke - At The Worst Time In History
Aired Apr 22, 2025📺
E6
We Finally Answered The MOST Important Question
Aired May 6, 2025📺
E7
Why Does Fentanyl Feel So Good?
Aired May 20, 2025📺
E8
How Nuclear Flies Protect You from Flesh-Eating Parasites
Aired Jun 3, 2025📺
E9
When Your Body Attacks Itself – Autoimmune
Aired Jul 1, 2025📺
E10
Let's Kill You a Billion Times to Make You Immortal
Aired Jul 29, 2025📺
E11
Alcohol is AMAZING
Aired Aug 12, 2025📺
E12
The Drug To Master Reality
Aired Aug 19, 2025📺
E13
The Dumbest Animal Alive
Aired Sep 2, 2025📺
E14
Can Humanity Stop A Planet-Killing Asteroid?
Aired Sep 16, 2025📺
E15
Pregnancy is Insane
Aired Sep 23, 2025📺
E16
We Found a Loophole to Survive the End of the Universe
Aired Sep 30, 2025📺
E17
AI Slop Is Killing Our Channel
Aired Oct 7, 2025📺
E18
You Need To Quit Weed.
Aired Nov 4, 2025📺
E19
You're More Stressed Than Ever - Let's Change That
Aired Nov 11, 2025📺
E20
Let's Talk About Fat
Aired Nov 18, 2025📺
E21
Trees Are So Weird
Aired Nov 25, 2025📺
E22
Astronomy Is In Crisis...And It's Incredibly Exciting
Aired Dec 2, 2025📺
E23
All Of Human History In One Hour
Aired Dec 5, 2025📺
E24
Tattoo Removal Is Insane
Aired Dec 12, 2025📺
E1
Did The Future Already Happen? - The Paradox of Time
Aired Jan 30, 2024
6 min
📺
E2
What Happens AFTER Nuclear War?
Aired Feb 20, 2024
6 min
📺
E3
The Paradox of an Infinite Universe
Aired Feb 27, 2024
6 min
📺
E4
How The Dinosaurs Actually Died
Aired Mar 26, 2024
6 min
📺
E5
There Are Thousands of Alien Empires in The Milky Way
Aired Apr 16, 2024
6 min
📺
E6
Smoking is Awesome
Aired May 7, 2024
6 min
📺
E7
This Black Hole Could be Bigger Than The Universe
Aired May 21, 2024
6 min
📺
E8
Do You Have a Free Will?
Aired Jun 11, 2024
6 min
📺
E9
This Disease is Deadlier Than The Plague
Aired Jun 25, 2024
6 min
📺
E10
We Need to Rethink Exercise – The Workout Paradox
Aired Jul 16, 2024
6 min
📺
E11
A.I. ‐ Humanity's Final Invention?
Aired Aug 6, 2024
6 min
📺
E12
Fever Feels Horrible, but is Actually Awesome!
Aired Aug 13, 2024
6 min
📺
E13
We Traveled Back in Time. Now Physicists Are Angry.
Aired Aug 27, 2024
6 min
📺
E14
We Need to Rethink Exercise (Updated Version)
Aired Sep 12, 2024
6 min
📺
E15
Why Scientists Are Puzzled By This Virus
Aired Sep 17, 2024
6 min
📺
E16
This Video Might Save 58 Lives Next Week
Aired Sep 24, 2024
6 min
📺
E17
There Is Something Hiding Inside Earth
Aired Oct 3, 2024
6 min
📺
E18
We Made an Uplifting Video
Aired Oct 8, 2024
6 min
📺
E19
We Fell For The Oldest Lie On The Internet
Aired Oct 29, 2024
6 min
📺
E20
The Most Insane Weapon You Never Heard About
Aired Nov 5, 2024
6 min
📺
E21
We Have To Talk About Weed
Aired Nov 12, 2024
6 min
📺
E22
Vaping Is Too Good To Be True
Aired Nov 19, 2024
6 min
📺
E23
Black Hole's Evil Twin - Gravastars Explained
Aired Dec 3, 2024
6 min
📺
E24
Syria, Israel, Ukraine - A New Decade of War
Aired Dec 10, 2024
6 min
📺
E25
How This Prawn Can Kill You - Allergies Explained
Aired Dec 12, 2024
6 min
📺
E1
The Most Complex Language in the World
Aired Feb 14, 2023
6 min
📺
E2
Your Immune System is More Dangerous than You Think
Aired Feb 28, 2023
6 min
📺
E3
The Business Behind Kurzgesagt
Aired Mar 28, 2023
6 min
📺
E4
Why Aliens Might Already Be On Their Way To Us
Aired Apr 11, 2023
6 min
📺
E6
The Black Hole That Kills Galaxies
Aired Jun 11, 2023
6 min
📺
E7
The Reason Why Cancer is so Hard to Beat
Aired Jun 18, 2023
6 min
📺
E8
The Most Dangerous Weapon Is Not Nuclear
Aired Jul 2, 2023
6 min
📺
E9
The (Second) Deadliest Virus
Aired Aug 8, 2023
6 min
📺
E10
What Happens If You Destroy A Black Hole?
Aired Aug 16, 2023
6 min
📺
E11
How A Nuclear War Will Start - Minute by Minute
Aired Aug 22, 2023
6 min
📺
E12
We Did The Math - You Are Dead!
Aired Sep 12, 2023
6 min
📺
E13
Why Korea is Dying Out
Aired Oct 4, 2023
6 min
📺
E14
Ancient Life as Old as the Universe
Aired Oct 10, 2023
6 min
📺
E15
4.5 Billion Years in 1 Hour
Aired Nov 10, 2023
6 min
📺
E16
How to Win an Interstellar War
Aired Nov 15, 2023
6 min
📺
E17
The Last Thing That Will Ever Happen
Aired Nov 21, 2023
6 min
📺
E18
The Internet is Worse Than Ever – Now What?
Aired Nov 29, 2023
6 min
📺
E19
How To Destroy The Universe
Aired Dec 8, 2023
6 min
📺
E20
Your Tattoo is INSIDE Your Immune System. Literally
Aired Dec 12, 2023
6 min
📺
E21
From The SMALLEST To The LARGEST - The Ultimate Size Comparison
Aired Dec 17, 2023
6 min
📺
E22
How Do Dead Things Become Alive?
Aired Feb 14, 2023
6 min
📺
E23
The Moment Kurzgesagt Changed Forever
Aired Dec 6, 2023
6 min
📺
E1
What Happens if the Moon Crashes into Earth?
Aired Feb 8, 2022
6 min
📺
E2
Are There Lost Alien Civilizations in Our Past?
Aired Mar 1, 2022
6 min
📺
E3
We WILL Fix Climate Change!
Aired Apr 5, 2022
6 min
📺
E4
The Most Horrible Parasite: Brain Eating Amoeba
Aired May 3, 2022
6 min
E5
You Are Not Where You Think You Are
Aired May 17, 2022Look around you. Where are you? Where is this place you are occupying? Somewhere in a room, maybe in a city on a continent on a planet orbiting a star in a galaxy among billions. But… where is all of that? While this may feel like a daft question, it turns out that the concept of an absolute position is something humans made up.In a nutshell, the universe is a big bag of space that has things in it. If someone removed all these things, the stars and planets and black holes and dust, there would just be empty space left. In empty space, the concept of having a position loses all meaning. Empty space is uniform, the same everywhere.
10 min
📺
E6
Why Change Is so Hard - and How to Fix It
Aired Jun 7, 2022
6 min
📺
E7
The Last Human – A Glimpse Into The Far Future
Aired Jun 28, 2022
6 min
📺
E8
The Deadliest Virus on Earth
Aired Jul 26, 2022
6 min
📺
E9
Is Civilization on the Brink of Collapse?
Aired Aug 16, 2022
6 min
📺
E10
Why You Are Lonely and How to Make Friends
Aired Sep 6, 2022
6 min
📺
E11
Let's Travel to The Most Extreme Place in The Universe
Aired Oct 4, 2022
6 min
📺
E12
What Happens if a Supervolcano Blows Up?
Aired Oct 18, 2022
6 min
E13
Why Don't We Shoot Nuclear Waste Into Space?
Aired Nov 8, 2022Here in the Kurzgesagt labs we test very important ideas to see what happens when you blow things up or play with black holes. Many of you suggested that we look into an idea that sounds reasonable: Shooting nuclear waste into space. It is one of those concepts that seems like an easy fix for one of the main problems with nuclear energy. But it turns out this idea is not just bad but horribly bad and it gets worse the longer you think about it.
11 min
📺
E14
The Most Extreme Explosion in the Universe
Aired Nov 23, 2022
6 min
📺
E15
The Horror of the Slaver Ant
Aired Dec 6, 2022
6 min
📺
E16
How To Terraform Mars - WITH LASERS
Aired Dec 11, 2022
6 min
📺
E17
Black Hole Star – The Star That Shouldn't Exist
Aired Dec 15, 2022
6 min
📺
E1
Worst Nuclear Accidents in History
Aired Feb 2, 2021
6 min
📺
E2
What if the World turned to Gold? - The Gold Apocalypse
Aired Mar 9, 2021
6 min
📺
E3
Do we Need Nuclear Energy to Stop Climate Change?
Aired Apr 13, 2021
6 min
E4
What If You Fall into a Black Hole?
Aired Apr 27, 2021
12 min
E5
TRUE Limits Of Humanity – The Final Border We Will Never Cross
Aired May 11, 2021
12 min
E6
What Are You Doing With Your Life? The Tail End
Aired May 25, 2021
10 min
📺
E7
The Day the Dinosaurs Died – Minute by Minute
Aired Jun 15, 2021
6 min
📺
E8
How To Terraform Venus (Quickly)
Aired Jul 6, 2021
6 min
📺
E9
The Largest Black Hole in the Universe - Size Comparison
Aired Aug 3, 2021
6 min
📺
E10
How The Immune System ACTUALLY Works – IMMUNE
Aired Aug 10, 2021
6 min
📺
E11
This Virus Shouldn't Exist (But it Does)
Aired Aug 31, 2021
6 min
E12
Can YOU Fix Climate Change?
Aired Sep 22, 2021
6 min
📺
E13
What Dinosaurs ACTUALLY Looked Like?
Aired Oct 12, 2021
6 min
📺
E14
You Are Immune Against Every Disease
Aired Nov 2, 2021
6 min
📺
E15
Is Meat Really that Bad?
Aired Nov 30, 2021
6 min
📺
E16
...And We'll Do it Again
Aired Dec 7, 2021
6 min
📺
E17
Why We Should NOT Look For Aliens - The Dark Forest
Aired Dec 14, 2021
6 min
📺
E1
Milk. White Poison or Healthy Drink?
Aired Jan 26, 2020
6 min
📺
E2
How to Make a Kurzgesagt Video in 1200 Hours
Aired Feb 16, 2020
6 min
📺
E3
Why Blue Whales Don't Get Cancer - Peto's Paradox
Aired Mar 1, 2020
6 min
📺
E4
The Coronavirus Explained & What You Should Do
Aired Mar 19, 2020
6 min
📺
E5
Why Are You Alive – Life, Energy & ATP
Aired May 10, 2020
6 min
📺
E6
The Past We Can Never Return To – The Anthropocene Reviewed
Aired May 24, 2020
6 min
📺
E7
Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections
Aired Jun 7, 2020
6 min
📺
E8
Who Is Responsible For Climate Change? – Who Needs To Fix It?
Aired Jun 21, 2020
6 min
📺
E9
What Is Intelligence? Where Does it Begin?
Aired Jul 12, 2020
6 min
📺
E10
What Do Alien Civilizations Look Like? The Kardashev Scale
Aired Aug 2, 2020
6 min
📺
E11
Unlimited Resources From Space – Asteroid Mining
Aired Aug 16, 2020
6 min
📺
E12
The Warrior Kingdoms of the Weaver Ant
Aired Aug 30, 2020
6 min
📺
E13
The Largest Star in the Universe – Size Comparison
Aired Sep 22, 2020
6 min
📺
E14
Is It Too Late To Stop Climate Change? Well, it's Complicated.
Aired Sep 29, 2020
6 min
📺
E15
When Time Became History - The Human Era
Aired Oct 6, 2020
6 min
📺
E16
Geoengineering: A Horrible Idea We Might Have to Do
Aired Oct 27, 2020
6 min
📺
E17
How Large Can a Bacteria get? Life & Size 3
Aired Nov 10, 2020
6 min
📺
E18
What If Earth got Kicked Out of the Solar System? Rogue Earth
Aired Dec 1, 2020
6 min
📺
E19
Can You Upload Your Mind & Live Forever?
Aired Dec 10, 2020
6 min
📺
E20
What if We Nuke the Moon?
Aired Dec 15, 2020
6 min
📺
E1
Is Organic Really Better? Healthy Food or Trendy Scam?
Aired Jan 13, 2019
6 min
📺
E2
Building a Marsbase is a Horrible Idea: Let's do it!
Aired Feb 3, 2019
6 min
📺
E3
Loneliness
Aired Feb 17, 2019
6 min
📺
E4
The Origin of Consciousness – How Unaware Things Became Aware
Aired Mar 17, 2019
6 min
📺
E5
What If We Detonated All Nuclear Bombs at Once?
Aired Mar 31, 2019
6 min
📺
E6
The Most Dangerous Stuff in the Universe - Strange Stars Explained
Aired Apr 14, 2019
6 min
📺
E7
The Side Effects of Vaccines - How High is the Risk?
Aired May 12, 2019
6 min
📺
E8
Is the EU Democratic? Does Your Vote Matter?
Aired May 19, 2019
6 min
📺
E9
Is Meat Bad for You? Is Meat Unhealthy?
Aired Jun 9, 2019
6 min
📺
E10
Could Your Phone Hurt You? Electromagnetic Pollution
Aired Jul 7, 2019
6 min
📺
E11
Tiny Bombs in your Blood - The Complement System
Aired Jul 28, 2019
6 min
📺
E12
The World War of the Ants – The Army Ant
Aired Aug 11, 2019
6 min
📺
E13
The Egg - A Short Story
Aired Sep 1, 2019
6 min
📺
E14
What's Hiding at the Most Solitary Place on Earth? The Deep Sea
Aired Sep 15, 2019
6 min
📺
E15
The Billion Ant Mega Colony and the Biggest War on Earth
Aired Sep 29, 2019
6 min
E16
What if We Nuke a City?
Aired Oct 13, 2019
6 min
📺
E17
Neutron Stars – The Most Extreme Things that are not Black Holes
Aired Nov 10, 2019
6 min
📺
E18
1,000km Cable to the Stars - The Skyhook
Aired Nov 17, 2019
6 min
📺
E19
An Antidote to Dissatisfaction
Aired Dec 8, 2019
6 min
📺
E20
Overpopulation & Africa
Aired Dec 15, 2019
6 min
📺
E21
How to Move the Sun: Stellar Engines
Aired Dec 22, 2019
6 min
📺
E1
Why Alien Life Would Be Our Doom — The Great Filter
Aired Feb 1, 2018
6 min
📺
E2
Homeopathy Explained – Gentle Healing or Reckless Fraud?
Aired Feb 22, 2018
6 min
📺
E3
String Theory Explained – What is The True Nature of Reality?
Aired Mar 1, 2018
6 min
📺
E4
A Selfish Argument for Making the World a Better Place – Egoistic Altruism
Aired Mar 18, 2018
6 min
📺
E5
Time: The History & Future of Everything – Remastered
Aired Apr 8, 2018
6 min
📺
E6
The Black Hole Bomb and Black Hole Civilizations
Aired Apr 22, 2018
6 min
📺
E7
The Deadliest Being on Planet Earth – The Bacteriophage
Aired May 13, 2018
6 min
📺
E8
3 Arguments Why Marijuana Should Stay Illegal Reviewed
Aired Jun 10, 2018
6 min
📺
E9
Plastic Pollution: How Humans are Turning the World into Plastic
Aired Jul 1, 2018
6 min
📺
E10
What If You Detonated a Nuclear Bomb in the Marianas Trench? (Science, Not Fantasy)
Aired Jul 22, 2018
6 min
📺
E11
Wormholes Explained – Breaking Spacetime
Aired Aug 12, 2018
6 min
📺
E12
How We Could Build a Moon Base TODAY – Space Colonization 1
Aired Sep 16, 2018
6 min
📺
E13
Why Meat is the Best Worst Thing in the World
Aired Sep 30, 2018
6 min
📺
E14
Why Beautiful Things Make us Happy – Beauty Explained
Aired Oct 23, 2018
6 min
📺
E15
End of Space – Creating a Prison for Humanity
Aired Nov 25, 2018
6 min
📺
E16
How to Build a Dyson Sphere - The Ultimate Megastructure
Aired Dec 20, 2018
6 min
📺
E17
Aliens under the Ice – Life on Rogue Planets
Aired Dec 27, 2018
6 min
📺
E1
Why Earth Is A Prison and How To Escape It
Aired Feb 1, 2017
6 min
📺
E2
Do Robots Deserve Rights? What if machines become conscious?
Aired Feb 23, 2017
6 min
📺
E3
Are GMOs Good or Bad? Genetic Engineering & Our Food
Aired Mar 30, 2017
6 min
📺
E4
Is the European Union Worth It Or Should We End It?
Aired Apr 13, 2017
6 min
📺
E5
The Last Light Before Eternal Darkness – White Dwarfs & Black Dwarfs
Aired May 4, 2017
6 min
📺
E6
The Rise of the Machines – Why Automation is Different this Time
Aired Jun 8, 2017
6 min
📺
E7
Optimistic Nihilism
Aired Jul 26, 2017
6 min
📺
E8
What Happens If We Throw an Elephant From a Skyscraper? (The Size of Life #1)
Aired Aug 10, 2017
6 min
📺
E9
Why Black Holes Could Delete The Universe – The Information Paradox
Aired Aug 24, 2017
6 min
📺
E10
What Happens If We Bring the Sun to Earth?
Aired Sep 7, 2017
6 min
📺
E11
Is Reality Real? The Simulation Argument
Aired Sep 21, 2017
6 min
📺
E12
How Bacteria Rule Over Your Body – The Microbiome
Aired Oct 5, 2017
6 min
📺
E13
Why Age? Should We End Aging Forever?
Aired Oct 20, 2017
6 min
📺
E14
How to Cure Aging – During Your Lifetime?
Aired Nov 3, 2017
6 min
📺
E15
Emergence – How Stupid Things Become Smart Together
Aired Nov 16, 2017
6 min
📺
E16
Universal Basic Income Explained — Free Money for Everybody?
Aired Dec 7, 2017
6 min
📺
E17
How to Make an Elephant Explode (The Size of Life #2)
Aired Dec 21, 2017
6 min
📺
E1
The Last Star in the Universe – Red Dwarfs Explained
Aired Jan 31, 2016
6 min
📺
E2
Why the War on Drugs is a Huge Failure
Aired Mar 1, 2016
6 min
📺
E3
The Antibiotic Apocalypse Explained
Aired Mar 16, 2016
6 min
📺
E4
Space Elevator – Science Fiction or the Future of Mankind?
Aired Apr 8, 2016
6 min
📺
E5
Safe and Sorry – Terrorism & Mass Surveillance
Aired Apr 14, 2016
6 min
📺
E6
How Far Can We Go - Limits of Humanity
Aired May 12, 2016
6 min
📺
E7
What Are You?
Aired May 31, 2016
6 min
📺
E8
What Happened Before History? Human Origins
Aired Jun 23, 2016
6 min
📺
E9
Death from Space — Gamma-Ray Bursts Explained
Aired Jul 31, 2016
6 min
📺
E10
Genetic Engineering Will Change Everything Forever – CRISPR
Aired Aug 10, 2016
6 min
📺
E11
Genetic Engineering and Diseases — Gene Drive & Malaria
Aired Sep 21, 2016
6 min
📺
E12
The Most Efficient Way to Destroy the Universe – False Vacuum
Aired Oct 21, 2016
6 min
📺
E13
Fusion Energy Explained – Future or Failure
Aired Nov 10, 2016
6 min
📺
E14
The Most Gruesome Parasites — Neglected Tropical Diseases (NTDs)
Aired Nov 30, 2016
6 min
📺
E15
A New History for Humanity – The Human Era
Aired Dec 7, 2016
6 min
📺
E16
Overpopulation – The Human Explosion Explained
Aired Dec 22, 2016
6 min
📺
E1
How Small is an Atom? Spoiler: Very Small.
Aired Jan 20, 2015
6 min
📺
E2
Measles Explained — Vaccinate or Not?
Aired Feb 24, 2015
6 min
📺
E3
Banking Explained – Money and Credit
Aired Mar 12, 2015
6 min
📺
E4
Nuclear Energy Explained: How Does It Work? (1/3)
Aired Mar 26, 2015
6 min
📺
E5
3 Reasons Why Nuclear Energy Is Terrible! (2/3)
Aired Apr 1, 2015
6 min
📺
E6
3 Reasons Why Nuclear Energy Is Awesome! (3/3)
Aired Apr 1, 2015
6 min
📺
E7
The Fermi Paradox — Where Are All the Aliens?
Aired May 6, 2015
6 min
📺
E8
The Fermi Paradox II — Solutions and Ideas
Aired Jun 4, 2015
6 min
📺
E9
The Death of Bees Explained – Parasites, Poison and Humans
Aired Jul 9, 2015
6 min
📺
E10
What If There Was a Black Hole in Your Pocket?
Aired Jul 16, 2015
6 min
📺
E11
What is Dark Matter and Dark Energy?
Aired Aug 6, 2015
6 min
📺
E12
What is Light?
Aired Oct 15, 2015
6 min
📺
E13
How Facebook is Stealing Billions of Views
Aired Nov 10, 2015
6 min
📺
E14
Quantum Computers Explained – Limits of Human Technology
Aired Dec 8, 2015
6 min
📺
E15
Black Holes Explained – From Birth to Death
Aired Dec 15, 2015
6 min
📺
E16
What is Something?
Aired Dec 23, 2015
6 min
📺
E1
Three Ways to Destroy the Universe
Aired Feb 3, 2014
6 min
📺
E2
The Beginning of Everything -- The Big Bang
Aired Mar 3, 2014
6 min
📺
E3
Who Invented the Internet? And Why?
Aired Apr 10, 2014
6 min
📺
E4
How Big Is the Moon? (MM#1)
Aired May 5, 2014
6 min
📺
E5
The Moons of Mars Explained -- Phobos & Deimos MM#2
Aired May 14, 2014
6 min
📺
E6
How to Catch a Dwarf Planet — Triton (MM#3)
Aired May 26, 2014
6 min
📺
E7
Are You Alone? (In the Universe)
Aired Jun 2, 2014
6 min
📺
E8
Iraq Explained -- ISIS, Syria and War
Aired Jun 19, 2014
6 min
📺
E9
The Immune System Explained I — Bacteria Infection
Aired Jul 1, 2014
6 min
📺
E10
Everything You Need to Know About Planet Earth
Aired Aug 4, 2014
6 min
📺
E11
Atoms As Big As Mountains — Neutron Stars Explained
Aired Sep 3, 2014
6 min
📺
E12
Is War Over? — A Paradox Explained
Aired Oct 9, 2014
6 min
📺
E13
The Ebola Virus Explained — How Your Body Fights for Survival
Aired Nov 6, 2014
6 min
📺
E14
What is Life? Is Death Real?
Aired Dec 14, 2014
6 min
📺
E15
The Ultimate Conspiracy Debunker
Aired Dec 18, 2014
6 min
📺
E1
How Evolution Works
Aired Jul 11, 2013
6 min
📺
E2
The Solar System -- Our Home in Space
Aired Aug 22, 2013
6 min
📺
E3
Fracking Explained: Opportunity or Danger
Aired Sep 3, 2013
6 min
📺
E4
The Gulf Stream Explained
Aired Oct 11, 2013
6 min
📺
E5
How the Stock Exchange Works (For Dummies)
Aired Nov 23, 2013
6 min
📺
E6
The History and Future of Everything -- Time
Aired Dec 19, 2013
6 min